[Bug other/52885] Request: Add -aslr switch that invokes -fPIE/-pie or -fPIC/-shared as appropriate

[noloader at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52885

--- Comment #7 from Jeffrey Walton <noloader at gmail dot com> 2012-08-21 22:08:38 UTC ---
(In reply to comment #1)

> Also using -fPIC instead of -fPIE is always ok.  So I doubt there is a really
> issue here.  Since the differences between PIC and PIE comes down to if symbols
> are overridable.  PIC is conservative at optimizing.


-fPIC/-pic apparently breaks other GNU tools:

./configure CFLAGS="-Wall -Wextra -Wconversion -fPIC -pic
-Wno-unused-parameter -Wformat=2 -Wformat-security
-fstack-protector-all -Wstrict-overflow -Wl,-z,noexecstack
-Wl,-z,relro -Wl,-z,now"
checking build system type... x86_64-unknown-linux-gnu
checking host system type... x86_64-unknown-linux-gnu
checking target system type... x86_64-unknown-linux-gnu
checking for gcc... gcc
checking whether the C compiler works... no
configure: error: in `/home/jeffrey/sipwitch-1.3.1':
configure: error: C compiler cannot create executables
See `config.log' for more details